Lewis Structures

1. Lewis Structures used to be easy(ish).
2. Except:
1. Boron and beryllium can go under the octet rule.
2. And anything in n=3 or higher can go over the octet rule.
3. Also, resonance
1. Sible bonds
4. Also, some compounds could have multiple structures
1. Use formal charges to work it out.
3. You really need to read the chapter before you come to class.

Homework:
  Page 409 (89, 91, 101, 105, 107)